Days ahead of its Galaxy SIV launch,
That would be another feature iPhones don't have.
Patently Apple found the trademark filing.
The filing doesn't mean that the new Galaxy phone will definitely have a 3D camera; the filing isn't that specific.
But, some of the marketing material Samsung has been using to preview the Galaxy S IV does hint that 3D may be coming. Check out the 3Dish look of the 4 in this image, for example:
Samsung